EP1742140B1 - Automatique de connexion à un appareil électronique portable - Google Patents

Automatique de connexion à un appareil électronique portable Download PDF

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Publication number
EP1742140B1
EP1742140B1 EP20060012440 EP06012440A EP1742140B1 EP 1742140 B1 EP1742140 B1 EP 1742140B1 EP 20060012440 EP20060012440 EP 20060012440 EP 06012440 A EP06012440 A EP 06012440A EP 1742140 B1 EP1742140 B1 EP 1742140B1
Authority
EP
European Patent Office
Prior art keywords
usb
cradle
computer
adapter
connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP20060012440
Other languages
German (de)
English (en)
Other versions
EP1742140A3 (fr
EP1742140A2 (fr
Inventor
Yi-Tsung Cheng
Chia-Hsing Liao
Hsiu-Hung Chou
Guo-Bin Fang
Chih-Chung Teng
Yu-Ping Hsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HTC Corp
Original Assignee
HTC Corp
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Filing date
Publication date
Application filed by HTC Corp filed Critical HTC Corp
Publication of EP1742140A2 publication Critical patent/EP1742140A2/fr
Publication of EP1742140A3 publication Critical patent/EP1742140A3/fr
Application granted granted Critical
Publication of EP1742140B1 publication Critical patent/EP1742140B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1632—External expansion units, e.g. docking stations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]

Definitions

  • the invention relates to a cradle for connecting to a portable electronic apparatus and, in particular, to a cradle that automatically switches between the USB connection and the AC adapter.
  • portable electronic devices such as the handheld multimedia mobile devices like PDAs, PDA phones, smart phones, mobile phones, MP3 players, Portable Media Players (PMP), Digital Videos (DV) and Digital Cameras (DC) can be connected to a computer to establish a USB connection. They can also use an AC adapter to charge their batteries. More and more devices are being configured with a mini USB as the I/O interface as the devices are designed increasingly smaller and lighter weight. PDAs especially exemplify this trend.
  • a PDA When establishing a USB connection using the mini USB, a PDA is not charged by the AC adapter. When using the USB to charge via the AC adapter, the PDA interrupts the USB connection to the computer. It is then necessary to manually reestablish the connection. The USB connection to the computer is also interrupted and remains broken when the computer suspends from its operating state. When the computer resumes operation, the PDA does not automatically reconnect to the computer using the USB port. Therefore, the conventional PDA cradle has many disadvantages.
  • An aspect of the invention is to provide a cradle for connecting to a portable electronic apparatus, such that the cradle uses a single mini USB connector to switch between the charge mode and the USB connection mode.
  • Another aspect of the invention is to provide a cradle for connecting to a portable electronic apparatus, such that the cradle can automatically detect a USB connection or transformer charging.
  • Yet another aspect of the invention is to provide a cradle for connecting to a portable electronic apparatus, such that the computer can automatically reestablish the connection without having to physically reconnect the USB wire when the computer is restored from suspension.
  • the invention provides a cradle for connecting to a portable electronic apparatus as set out in claim 1.
  • the cradle includes an AC adapter connector, a USB connector, a mini USB plug, and a USB signal detecting circuit.
  • the adapter connector is used to connect to an AC adapter.
  • the USB connector has a USB_D+ and a USB_D- contact.
  • the USB connector is used to connect to a computer USB interface.
  • the mini USB plug is used to connect to a portable electronic apparatus.
  • the USB signal detecting signal detects the USB_D+ and USB_D- contact of the USB connector.
  • the invention has at least the following advantages, wherein each embodiment has one or more advantages.
  • the disclosed cradle can use a single mini USB connector to switch between a charge mode and a USB connection mode.
  • the disclosed cradle can automatically detect a USB connection or transformer charging. And, the disclosed cradle can automatically reestablish the connection once the computer resumes its operating state without having to physically reconnect the USB wire.
  • the disclosed cradle 102 is used to connect to a portable electronic apparatus 120. Via the cradle 102, the portable electronic apparatus 120 can be charged or connected to a computer 118 via its USB interface 124.
  • the cradle 102 has a USB connector 104, an AC adapter connector 108, and a mini USB plug 106.
  • the USB connector 104 is connected to the USB interface 124 of the computer 118.
  • the AC adapter connector 108 is connected to an AC adapter 122.
  • the mini USB plug 106 is connected to a portable electronic apparatus 120.
  • the cradle 102 When only the computer 118 is connected to the cradle 102, the cradle 102 establishes a USB connection via the USB connector 104 and the mini USB plug 106. The computer 118 can thus exchange data with the portable electronic apparatus 120.
  • the portable electronic apparatus 120 When only the AC adapter 122 is connected to the cradle 102, the portable electronic apparatus 120 is charged via the cradle 102. The portable electronic apparatus 120 is charged via USB_VBUS of the mini USB plug.
  • the cradle 102 determines whether to establish a USB connection or to charge, depending upon the situation.
  • the computer 118 is in an operating state, the cradle 102 has a higher priority to establish the USB connection. Therefore, the computer 118 and the portable electronic apparatus 120 are in the USB connection state. In other words, the priority of the USB connection is higher than the connection to the AC adapter 122.
  • the cradle 102 allows the portable electronic apparatus 120 to be charged via the AC adapter 122. The charging is performed by the AC adapter 122 via the AC adapter connector 108 and the USB_VBUS of the mini USB plug 106.
  • USB_VBUS of the USB connector 104 and USB_VBUS of the mini USB plug 106 are connected together, which allows a small charging current.
  • This charging current through the computer 118 is smaller (about 500 mA) than the charging current via the AC adapter 122 (the maximum charging current provided by the AC adapter).
  • FIG. 2 depicts the flowchart of operating the disclosed cradle.
  • the cradle 102 is connected to USB_VBUS of the mini USB plug 106 via USB_VBUS of the USB connector 104 to charge the portable electronic apparatus 120.
  • the current is about 500 mA (step 210).
  • the cradle 102 is connected to USB_VBUS of the mini USB plug 106 via USB_VBUS of the USB connector 104 to charge the portable electronic apparatus 120.
  • the current is about 500 mA (step 210).
  • a USB signal detecting circuit 112 detects whether the computer is in an operating state or suspended state (step 212).
  • the timing on USB_D+ and USB_D-contact of the USB connector 104 has a specific variation (e.g. the period during which it is not maintained at a specific potential level is greater than 300 ms)
  • the USB signal detecting circuit 112 determines that the computer 118 is in an operating state and keeps the original USB connection.
  • the USB signal detecting circuit 112 determines that the computer 118 is in a suspended state.
  • step 214 the computer 118 still considers the portable electronic apparatus 120 to be in the USB connected state.
  • the AC adapter 122 charges the portable electronic apparatus via USB_VBUS of the mini USB plug 106. In this case, the charging current can reach the maximum provided by the AC adapter.
  • the USB signal detecting circuit 112 continues detecting the timing on USB_D+ and USB_D- contact of the USB connector 104 to determine if there is any specific variation (e.g. it is maintained at a specific potential level). If the timing has any variation, the USB signal detecting circuit 112 considers the computer 118 as back to its operating state.
  • the switch 114 resumes its connection, while the switch 116 is disconnected.
  • USB_D+ of the USB connector 104 and USB_D+ of the mini USB plug 106 are connected to resume the USB connection (step 216).
  • the 500mA charging on USB_VBUS is also resumed (step 210).
  • step 214 continues for the AC adapter 122 to charge the portable electronic apparatus 120.
  • the above-mentioned portable electronic apparatus 120 comprises a multimedia portable apparatus such as a PDA, PDA phone, smart phone, mobile phone, MP3 player, Portable Media Player (PMP), Digital Video (DV), and Digital Camera (DC).
  • PMP Portable Media Player
  • DV Digital Video
  • DC Digital Camera
  • the invention has at least the following advantages, wherein each embodiment features one or more of them.
  • the disclosed cradle uses a single mini USB plug to switch between a charge mode and a USB connection mode.
  • the disclosed cradle can automatically detect the USB connection or transformer charging. When the computer resumes operation from being suspended, the disclosed cradle can automatically reestablish the connection without having to physically reconnect the USB cable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)

Claims (4)

  1. Support de connexion à un dispositif électronique portable (120), comprenant :
    un connecteur USB (104) utilisé pour la connexion à une interface USB (124) d'un ordinateur (118) ;
    une mini-fiche USB (106) utilisée pour la connexion au dispositif électronique portable (120) et comportant un premier commutateur (114) entre un contact USB_D+ du connecteur USB (104) et un contact USB_D+ de la mini-fiche USB (106) ;
    un connecteur d'adaptateur CA (108) utilisé pour la connexion à un adaptateur CA (122) ; et
    un circuit de détection de signal USB (112), qui détecte le contact USB_D+ et un contact USB_D- du connecteur USB (104) ;
    dans lequel, quand l'ordinateur (118) suspend à partir d'un état de fonctionnement, le support (102) change une valeur USB_ID de la mini-fiche USB (106), le premier commutateur (114) déconnecte, l'USB_D+ du connecteur USB (104) est maintenu à une tension haute par le biais d'un deuxième commutateur (116), et le dispositif électronique portable (120) est chargé par l'adaptateur CA (122) par le biais du connecteur d'adaptateur CA (108) et de la mini-fiche USB (106) et, quand l'ordinateur (118) reprend son état de fonctionnement qui a été suspendu, le support (102) rétablit la valeur USB_ID de la mini-fiche USB (106) et le premier commutateur (114) rétablit la connexion USB avec l'ordinateur (118) sans avoir à reconnecter physiquement le connecteur USB (104) ;
    dans lequel, quand l'ordinateur (118) est suspendu à partir d'un état de fonctionnement, le dispositif électronique portable (120) est chargé par l'adaptateur CA (122) par le biais de la mini-fiche USB (106) et, quand l'ordinateur (118) reprend son état de fonctionnement après la suspension, le dispositif électronique portable (120) rétablit automatiquement la connexion USB avec l'ordinateur (118).
  2. Support selon la revendication 1, comprenant en outre :
    un circuit de détection de signal d'entrée d'alimentation électrique (110), qui détecte un USB_VBUS du connecteur USB (104) et une alimentation d'entrée de l'adaptateur CA (122) ;
    dans lequel, quand le USB_VBUS et l'alimentation d'entrée de l'adaptateur CA (122) existent simultanément, le circuit de détection de signal USB (112) détecte si l'ordinateur (118) est dans son état de fonctionnement.
  3. Support selon la revendication 1, dans lequel l'automatique (102) utilise un résultat de détection du circuit de détection de signal USB (112) pour déterminer une valeur USB_ID de la mini-fiche USB (106).
  4. Support selon la revendication 1, dans lequel l'automatique (102) détermine que l'ordinateur (118) est dans l'un de l'état de fonctionnement et d'un état suspendu en activant les valeurs de USB_D+ et USB_D- de la mini-fiche USB (106).
EP20060012440 2005-07-05 2006-06-16 Automatique de connexion à un appareil électronique portable Expired - Fee Related EP1742140B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100833158A CN100454188C (zh) 2005-07-05 2005-07-05 一种可携式电子装置的连接座

Publications (3)

Publication Number Publication Date
EP1742140A2 EP1742140A2 (fr) 2007-01-10
EP1742140A3 EP1742140A3 (fr) 2007-09-12
EP1742140B1 true EP1742140B1 (fr) 2011-01-05

Family

ID=37114395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060012440 Expired - Fee Related EP1742140B1 (fr) 2005-07-05 2006-06-16 Automatique de connexion à un appareil électronique portable

Country Status (3)

Country Link
EP (1) EP1742140B1 (fr)
CN (1) CN100454188C (fr)
DE (1) DE602006019352D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218414A (zh) * 2014-08-21 2014-12-17 苏州佳世达光电有限公司 一种电子装置
CN104218414B (zh) * 2014-08-21 2017-01-04 苏州佳世达光电有限公司 一种电子装置

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US20070149132A1 (en) * 2005-12-22 2007-06-28 Junyl Li Methods and apparatus related to selecting control channel reporting formats
CN101677187B (zh) * 2008-09-18 2014-05-28 立锜科技股份有限公司 电池系统及其控制方法以及该电池系统的充电器
CN101777716B (zh) * 2009-01-09 2012-07-11 宏达国际电子股份有限公司 可携式电子装置以及用于该可携式电子装置的接头连接方法
TWI398759B (zh) 2009-07-22 2013-06-11 Htc Corp 電源供應裝置、可判斷電源供應裝置的種類之可攜式電子裝置及其相關判斷方法
CN101989751B (zh) * 2009-07-30 2014-01-15 宏达国际电子股份有限公司 可携式电子装置及其相关判断方法
CN101706759B (zh) * 2009-11-10 2011-06-15 无敌科技(西安)有限公司 判断usb连接模式的系统及其方法
US20120071215A1 (en) * 2010-09-16 2012-03-22 Motorola Mobility, Inc. Method and Apparatus for Controlling a Smart Phone Charger
CN102447463B (zh) * 2010-10-11 2013-05-08 重庆工商大学 串行口联络线管理的8k路传感器28n/2组家用电器接线座
KR101717505B1 (ko) * 2010-12-02 2017-03-17 삼성전자주식회사 외부 기기 충전 방법 및 이를 이용하는 디스플레이 장치
CN102544919B (zh) * 2010-12-22 2015-01-07 昆达电脑科技(昆山)有限公司 电缆
CN103036276B (zh) * 2012-11-23 2015-03-11 小米科技有限责任公司 充电器、终端、控制器、系统和充电器识别方法
CN104714916B (zh) * 2015-03-30 2017-11-17 迈普通信技术股份有限公司 Usb接口外部设备插入/拨出检测系统
EP3206279B1 (fr) * 2015-12-16 2020-11-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé et dispositif de commande de charge, adaptateur d'alimentation, et terminal mobile
CN105790356B (zh) * 2016-04-06 2018-07-03 北京天诚盛业科技有限公司 一种具有充电电路的数据线

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JP2002163044A (ja) * 2000-11-29 2002-06-07 Canon Inc 携帯情報端末装置、充電装置、給電方法、及び記憶媒体
JP2002252801A (ja) * 2000-12-21 2002-09-06 Fuji Photo Film Co Ltd デジタルカメラ用クレードル
KR100711914B1 (ko) * 2001-09-15 2007-04-27 엘지전자 주식회사 유에스비 전원 제어장치
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CN2651712Y (zh) * 2003-09-27 2004-10-27 珠海市伊特高科技有限公司 配电综合测控仪

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104218414A (zh) * 2014-08-21 2014-12-17 苏州佳世达光电有限公司 一种电子装置
CN104218414B (zh) * 2014-08-21 2017-01-04 苏州佳世达光电有限公司 一种电子装置

Also Published As

Publication number Publication date
CN100454188C (zh) 2009-01-21
DE602006019352D1 (de) 2011-02-17
EP1742140A3 (fr) 2007-09-12
CN1892521A (zh) 2007-01-10
EP1742140A2 (fr) 2007-01-10

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